Wikidata is a free, collaborative, multilingual, secondary database, collecting structured data to provide support for Wikipedia, Wikimedia Commons, the other wikis of the Wikimedia movement, and to anyone in the world.

After hosting the first wikidata lotico meetup in New York in 2012 in collaboration with the New York Times it is time to follow up again with the wikidata team and take a look at the great developments this wikimedia project has made over that last 5 years.

Wikidata is an open knowledge base that can be read and edited by both humans and machines. Wikidata acts as central storage for the structured data of its Wikimedia sister projects including Wikipedia, Wikivoyage, Wikisource, and others.

Wikidata also provides support to many other sites and services beyond just Wikimedia projects! The content of Wikidata is available under a free license, exported using standard formats, and can be interlinked to other open data sets on the linked data web.

After a short introduction and overview of the wikidata project will take a closer look at the architecture, the user interface and the SPARQL query service of wikidata that is currently available publicly at:

We will learn directly from the core developers of the wikidata project how the current services are implemented and how emerging challenges are addressed to deal with this large and growing, granular data set to efficiently embrace the new world of (wiki)data on the web.